Stay or strut for hinged lids of gramophone and other cabinets



April 23, 1929. co u s 1,710,570

- STAY 0R STRUT FOR HINGED LIDS OF GRAMOPHONE AND OTHER CABINETS FiledDec 15. 192 7 Patented Apr. 23, 1929.

UNITED STATES.

v1,710,570 PATENT OFFICE.

AUBREY LAWRENCE counts, or LONDON, ENGLAND.

STAY on s'rno'r FOR amen!) LIDS or ea'amornonn Annornna CABINETS. I

Application filed December 15, 1927, Serial No. 240,294, and in GreatBritain January 25, 1927.

which is simple in construction quiet in action, and which does notrequire the cabinet to be cut to allow for fixing. Now according to thepresent invention I provide a stay or strut for hinged lids ofgramophones and other cabinets, in which the said stay or strut isprovided with a pivotally' mounted member or catch adapted to bepositively rotated by co-operations With a plurality of cam surfaces orstops provided on or in connection with an oscillating plate orchannel'with which the strut is adapted to co-operate.

In order that the present invention may be clearly understood and morereadily carried into effect, it is hereinafter described with referenceto the accompanying drawings, in which Figure 1 is a sectional sideelevation illustrating the improved stay or strut applied to agramophone cabinet and showing the lid thereof supported in a raisedposition thereby;

Figure 2 is an edge elevation of the improved strut;

Figure 3 is a strut;

Figure 4 is a detail vievfshowing the relative positions occupied by theparts of the front elevation of the said .mechanism when the lid of thecabinet is raised Figure 51s a similar detail View showing. the relativepositions occupied by the parts of the mechanism when the strut issupportin the lid of the cabinet, as in Figure 1;

igure 6 is a further similar detail-view v showing the relativepositions occupied by the parts of the mechanismwhenthe lid of thecabinet is raised prior to closing same; -.Figure 7 is a still furthersimilar detail view showing the rel itive positions occupied by theparts of-the mechanism as the lid of the cabinet is being closed, and pFigure 8 is a substantially similar -view to Figure 7 showing thechannel through which the, strut slides pivotally connected to andsupported by a bracket and top plate in place of the side bracket shownin the preceding figures of the drawing.

. As shown and referring to theaccompanya ing drayvingait will be. seenthat the imfixin plate is formed in two in two channels of a partlyrevolving pivoted plate 17 attached, as by a bracket plate 18, to thebody of the cabinet-19. The pivot about which the plate 17 turns isindicated by the numeral 20. The two inturned edges 21 and 22 of thechannelsof the plate 17 have, as shown, an irregular or cam formation;(lo-operatingv with the two irregular or cam formations I fit-to theother end of the strut 12 an elongated revolving member 23 which issubstantially. the shape of a rhomboid. This member isheld frictiontight by 'a suitable spring washer 24.

[In operation the movement to open and support the lid of the cabinet isas follows :-The lid 15 of the cabinet 19 is raised from a closedposition, in which the part 23 of the mechanism assumes the positionshown in Figures 3 and 8, up to itsfull extent till the parts assume theposition shown in Figure'4 with the member 23 engaged at its upper endwith the upper inturned edge portion 21. Then the lid is slightlylowered till the parts assume the position shown in Figures 1 and 5 withthe member 23 restin at its lower pointed end against the shoul er ofthe inturned portion 22 and the upstanding portion 22 of the part 17. Inthis position the lid 15 of the cabinet 19 is supported b the strut 12.In

order to close the lid 0' the cabinet .it is necessary to again raisethe lid to its full extent till thepart 23 is engaged by the part 21, asshown in Figure 6. Then the lid can be closed and on the downwardmovement the part 23 'will be turned round artly by contact with theshoulder 22 and then-by engagement with the inturned part 22, asindicated in a state of transition in Figure reverse the support orstrut 12, the top end in this case being fixed to the cabinet 19 vandthe bottom fixed to the lid 15.

I 18 adaptedto be screwed to the inside of a cabinet I may employ abracket of the It will be appreciated from the foregoing descriptionthat the operation of the strut is quite fool proof and I automatic inits action and that the revolving member or catch 23 partakes of astep-by-step anticlockwise movement, turningthrough 180 degrees for fourstrokes, constituting a complete cycle of operations, whilst the channelplate 17 merely oscillates about its pivot.

In some cases and in place of the bracket kind shown in Figure 8 havinga fiat horizontal top plate 24Kadapted to be held by screws 25 to themotor board of the ma- 26, to. hold the chine and a depending wing plateor lug pivot 20 as will be readily understood.

What I claim is:- 1. A supporting strut for hinged lids of cabinets andthe like, including a strut prop- .er connected to the lid, 2. platesupported on the cabinet and slidably receiving the strut, a memberpivotally mounted on .the strut, and means on the plateto be engaged bysaid member in successive longitudinal movements of the strut, saidmeans in one upward movement of the strut serving to position'the memberfor interlocking with the plate on the next downward movement to supportthe strut in elevated position, said means in thenext successive upwardmovement of the strut serving to position the -member to cause it to berotated during an opposing movement of the strut to. a

position to free it with respect to the plate. 2. A strut for hingedlids of cabinets, including a strut proper connected to the lid,

" .a plate mounted on the cabinet and formed with spaced abutments, anda member pivoted on the strut and operative in successive movements ofthe strut to first cooperate with one abutment ofthe, plate forpositioning the member for locln 'ng cooperation with the other abutmentand then-,cooperate with the first abutment for positioning said memherto be rotated on further cooperation withthe second abutment. 1 v 3. Astayor strut for gramophonecabinets or the like, includingra strutconnected to the lid of the cabinet, a member rotatably mounted on thestrut, and a plate fixed to s1 the cabinet proper to slidably receivethe strut, said plate having an upper abutment and a 'lower" stop, themember on the strut bemg formed to cooperate with the abutment andpositioned for locking engagement with the stop to hold the strut infixed' relation to the plate, the said member on sub-" sequentcooperation with the abutment being turned out of cooperative relationwith the stop, the new relation of the member causing the stop to turnthe member on its pivotal mounting without interfering with the movementof the strut.

4. A strut for gramophone lids, including a. strut proper secured to thelid, a plate se-. cured to the" gramophone cabinet, an abutthe platebelow the abutment, and a member pivotally mounted on the strut, saidmember being formed to cooperate with the abutment in-the initial upwardmovement of ment carried 'onthe plate, a stop carried by thestrut', tomove the member in position to cause one of its edges to engage withthestop on the following limited downward' movement of the strut tohold'the strut against further downward movement, said member on thesucceeding upward 'movement of the strut enga g-the abutment and beingoperated-throng said engagement to a position to'perinit it to be swungon its pivotal mounting in cooperation with the stop 'on the-nextfdownward movement of the strut.

5. A strut for. gramophone .lid s, inchrd-- ing a strut proper securedto the lid, a plate pivot-ally secured to .the gramophone cabinet, anabutment carried on the plate, a stop carried by the plate below theabutment,

and a member pivotally mounted on the strut, said member being formed tocooperate with the abutment in the initial upward.

movement of. the ;strut, to move the member in position to cause one ofits edges to engage with the stop on the-following limited downwardmovement of the strut to hold the strut against. further downwardmovement, said member on the succeeding.

